Warning: Permanently added '10.128.0.232' (ED25519) to the list of known hosts. 2026/07/08 12:13:19 parsed 1 programs 2026/07/08 12:13:19 serving rpc on tcp://39341 [ 23.776126][ T30] audit: type=1400 audit(1783512799.480:64): avc: denied { node_bind } for pid=293 comm="syz-execprog" saddr=::1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:node_t tclass=tcp_socket permissive=1 [ 23.796963][ T30] audit: type=1400 audit(1783512799.480:65): avc: denied { module_request } for pid=293 comm="syz-execprog" kmod="net-pf-2-proto-262-type-1" scontext=root:sysadm_r:sysadm_t tcontext=system_u:system_r:kernel_t tclass=system permissive=1 [ 24.517371][ T30] audit: type=1400 audit(1783512800.230:66): avc: denied { mounton } for pid=300 comm="syz-executor" path="/syzcgroup/unified" dev="sda1" ino=2024 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:root_t tclass=dir permissive=1 [ 24.518368][ T300] cgroup: Unknown subsys name 'net' [ 24.540055][ T30] audit: type=1400 audit(1783512800.230:67): avc: denied { mount } for pid=300 comm="syz-executor" name="/" dev="cgroup2" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 24.567297][ T30] audit: type=1400 audit(1783512800.250:68): avc: denied { unmount } for pid=300 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:cgroup_t tclass=filesystem permissive=1 [ 24.567458][ T300] cgroup: Unknown subsys name 'devices' [ 24.679088][ T300] cgroup: Unknown subsys name 'hugetlb' [ 24.684707][ T300] cgroup: Unknown subsys name 'rlimit' [ 24.796213][ T30] audit: type=1400 audit(1783512800.500:69): avc: denied { setattr } for pid=300 comm="syz-executor" name="raw-gadget" dev="devtmpfs" ino=254 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:device_t tclass=chr_file permissive=1 [ 24.819455][ T30] audit: type=1400 audit(1783512800.500:70): avc: denied { create } for pid=300 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 24.826702][ T303] SELinux: Context root:object_r:swapfile_t is not valid (left unmapped). [ 24.840134][ T30] audit: type=1400 audit(1783512800.500:71): avc: denied { write } for pid=300 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 [ 24.868720][ T30] audit: type=1400 audit(1783512800.500:72): avc: denied { read } for pid=300 comm="syz-executor" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=netlink_generic_socket permissive=1 Setting up swapspace version 1, size = 127995904 bytes [ 24.888910][ T30] audit: type=1400 audit(1783512800.500:73): avc: denied { mounton } for pid=300 comm="syz-executor" path="/proc/sys/fs/binfmt_misc" dev="binfmt_misc" ino=1 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:binfmt_misc_fs_t tclass=dir permissive=1 [ 24.908236][ T300] Adding 124996k swap on ./swap-file. Priority:0 extents:1 across:124996k [ 25.358466][ T305] request_module fs-gadgetfs succeeded, but still no fs? [ 25.714480][ T335] bridge0: port 1(bridge_slave_0) entered blocking state [ 25.721602][ T335] bridge0: port 1(bridge_slave_0) entered disabled state [ 25.729106][ T335] device bridge_slave_0 entered promiscuous mode [ 25.736696][ T335] bridge0: port 2(bridge_slave_1) entered blocking state [ 25.743770][ T335] bridge0: port 2(bridge_slave_1) entered disabled state [ 25.751086][ T335] device bridge_slave_1 entered promiscuous mode [ 25.785991][ T335] bridge0: port 2(bridge_slave_1) entered blocking state [ 25.793082][ T335] bridge0: port 2(bridge_slave_1) entered forwarding state [ 25.800443][ T335] bridge0: port 1(bridge_slave_0) entered blocking state [ 25.807517][ T335] bridge0: port 1(bridge_slave_0) entered forwarding state [ 25.825717][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 25.833448][ T10] bridge0: port 1(bridge_slave_0) entered disabled state [ 25.841005][ T10] bridge0: port 2(bridge_slave_1) entered disabled state [ 25.858584][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 25.866792][ T10] bridge0: port 1(bridge_slave_0) entered blocking state [ 25.873940][ T10] bridge0: port 1(bridge_slave_0) entered forwarding state [ 25.881351][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 25.889682][ T10] bridge0: port 2(bridge_slave_1) entered blocking state [ 25.896729][ T10] bridge0: port 2(bridge_slave_1) entered forwarding state [ 25.904181][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 25.919610][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 25.928988][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 25.939914][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 25.947949][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 25.955286][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 25.963421][ T335] device veth0_vlan entered promiscuous mode [ 25.974696][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 25.983594][ T335] device veth1_macvtap entered promiscuous mode [ 25.992542][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 26.002253][ T10] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 26.050563][ T335] syz-executor (335) used greatest stack depth: 20960 bytes left 2026/07/08 12:13:22 executed programs: 0 [ 26.450659][ T367] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.458083][ T367] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.465367][ T367] device bridge_slave_0 entered promiscuous mode [ 26.474808][ T367] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.481898][ T367] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.489289][ T367] device bridge_slave_1 entered promiscuous mode [ 26.525132][ T367] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.532699][ T367] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.540005][ T367] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.547067][ T367] bridge0: port 1(bridge_slave_0) entered forwarding state [ 26.555270][ T331] bridge0: port 1(bridge_slave_0) entered disabled state [ 26.562530][ T331] bridge0: port 2(bridge_slave_1) entered disabled state [ 26.582019][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 26.589518][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 26.598165][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 26.606563][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 26.615102][ T331] bridge0: port 1(bridge_slave_0) entered blocking state [ 26.622184][ T331] bridge0: port 1(bridge_slave_0) entered forwarding state [ 26.630870][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 26.639245][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 26.647423][ T331] bridge0: port 2(bridge_slave_1) entered blocking state [ 26.654459][ T331] bridge0: port 2(bridge_slave_1) entered forwarding state [ 26.667844][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_hsr: link becomes ready [ 26.675945][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 26.684474][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_hsr: link becomes ready [ 26.692758][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 26.710492][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_virt_wifi: link becomes ready [ 26.719168][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_virt_wifi: link becomes ready [ 26.732207][ T367] device veth0_vlan entered promiscuous mode [ 26.738568][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_vlan: link becomes ready [ 26.746470][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_vlan: link becomes ready [ 26.754545][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): vlan0: link becomes ready [ 26.762395][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): vlan1: link becomes ready [ 26.775801][ T367] device veth1_macvtap entered promiscuous mode [ 26.783950][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_macvtap: link becomes ready [ 26.792322][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_macvtap: link becomes ready [ 26.800472][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): macsec0: link becomes ready [ 26.811129][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_0: link becomes ready [ 26.819644][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_batadv: link becomes ready [ 26.828974][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): batadv_slave_1: link becomes ready [ 26.837394][ T331] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_batadv: link becomes ready [ 26.859972][ T371] ================================================================== [ 26.868092][ T371] BUG: KASAN: use-after-free in mutex_lock+0x8e/0x1c0 [ 26.874852][ T371] Write of size 8 at addr ffff88810fc99d50 by task syz.2.17/371 [ 26.882467][ T371] [ 26.884904][ T371] CPU: 0 PID: 371 Comm: syz.2.17 Not tainted syzkaller #0 [ 26.892009][ T371] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026 [ 26.902057][ T371] Call Trace: [ 26.905323][ T371] [ 26.908238][ T371] __dump_stack+0x21/0x30 [ 26.912556][ T371] dump_stack_lvl+0x110/0x170 [ 26.917225][ T371] ? show_regs_print_info+0x20/0x20 [ 26.922616][ T371] ? load_image+0x3f0/0x3f0 [ 26.927122][ T371] print_address_description+0x7f/0x2c0 [ 26.932661][ T371] ? mutex_lock+0x8e/0x1c0 [ 26.937681][ T371] kasan_report+0x10f/0x150 [ 26.942363][ T371] ? mutex_lock+0x8e/0x1c0 [ 26.946776][ T371] kasan_check_range+0x249/0x2a0 [ 26.951904][ T371] __kasan_check_write+0x14/0x20 [ 26.956837][ T371] mutex_lock+0x8e/0x1c0 [ 26.961080][ T371] ? wait_for_completion_killable_timeout+0x10/0x10 [ 26.967769][ T371] ? l2tp_session_put+0xaf/0x1a0 [ 26.972714][ T371] ? l2tp_session_delete+0x3a9/0x4a0 [ 26.977997][ T371] pppol2tp_release+0x178/0x2b0 [ 26.982847][ T371] sock_close+0xb8/0x200 [ 26.987080][ T371] ? sock_mmap+0xa0/0xa0 [ 26.991339][ T371] __fput+0x22b/0x900 [ 26.995322][ T371] ____fput+0x15/0x20 [ 26.999288][ T371] task_work_run+0x127/0x190 [ 27.003950][ T371] exit_to_user_mode_loop+0xd0/0xe0 [ 27.009218][ T371] exit_to_user_mode_prepare+0x87/0xd0 [ 27.014696][ T371] syscall_exit_to_user_mode+0x1a/0x30 [ 27.020428][ T371] do_syscall_64+0x58/0xa0 [ 27.024839][ T371] ? clear_bhb_loop+0x50/0xa0 [ 27.029506][ T371] ? clear_bhb_loop+0x50/0xa0 [ 27.034178][ T371] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 27.040081][ T371] RIP: 0033:0x7fb068d35e59 [ 27.044505][ T371] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48 [ 27.064458][ T371] RSP: 002b:00007ffcc74d6d18 EFLAGS: 00000246 ORIG_RAX: 00000000000001b4 [ 27.072871][ T371] RAX: 0000000000000000 RBX: 00007ffcc74d6e00 RCX: 00007fb068d35e59 [ 27.080831][ T371] RDX: 0000000000000000 RSI: 000000000000001e RDI: 0000000000000003 [ 27.088801][ T371] RBP: 00000000000068ce R08: 0000000000000001 R09: 0000000000000000 [ 27.096768][ T371] R10: 0000001b32e20000 R11: 0000000000000246 R12: 0000000000000000 [ 27.104735][ T371] R13: 00007fb068fbdfac R14: 00007fb068fbdfa8 R15: 00007fb068fbdfa0 [ 27.112709][ T371] [ 27.115725][ T371] [ 27.118050][ T371] Allocated by task 371: [ 27.122287][ T371] __kasan_kmalloc+0xd4/0x100 [ 27.126966][ T371] __kmalloc+0x13d/0x2c0 [ 27.131204][ T371] l2tp_session_create+0x39/0xb60 [ 27.136223][ T371] pppol2tp_connect+0xbf5/0x1640 [ 27.141188][ T371] __sys_connect+0x3cb/0x450 [ 27.145791][ T371] __x64_sys_connect+0x7a/0x90 [ 27.150576][ T371] x64_sys_call+0x7c/0x9a0 [ 27.154985][ T371] do_syscall_64+0x4c/0xa0 [ 27.159400][ T371] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 27.165295][ T371] [ 27.167613][ T371] Freed by task 371: [ 27.171496][ T371] kasan_set_track+0x4a/0x70 [ 27.176084][ T371] kasan_set_free_info+0x23/0x40 [ 27.181017][ T371] ____kasan_slab_free+0x125/0x160 [ 27.186121][ T371] __kasan_slab_free+0x11/0x20 [ 27.190877][ T371] slab_free_freelist_hook+0xc2/0x190 [ 27.196244][ T371] kfree+0xc4/0x270 [ 27.200059][ T371] l2tp_session_put+0xaf/0x1a0 [ 27.204823][ T371] l2tp_session_delete+0x3a9/0x4a0 [ 27.209959][ T371] pppol2tp_release+0x169/0x2b0 [ 27.214829][ T371] sock_close+0xb8/0x200 [ 27.219067][ T371] __fput+0x22b/0x900 [ 27.223043][ T371] ____fput+0x15/0x20 [ 27.227018][ T371] task_work_run+0x127/0x190 [ 27.231602][ T371] exit_to_user_mode_loop+0xd0/0xe0 [ 27.236793][ T371] exit_to_user_mode_prepare+0x87/0xd0 [ 27.242246][ T371] syscall_exit_to_user_mode+0x1a/0x30 [ 27.247705][ T371] do_syscall_64+0x58/0xa0 [ 27.252121][ T371] entry_SYSCALL_64_after_hwframe+0x66/0xd0 [ 27.258027][ T371] [ 27.260361][ T371] The buggy address belongs to the object at ffff88810fc99c00 [ 27.260361][ T371] which belongs to the cache kmalloc-512 of size 512 [ 27.274413][ T371] The buggy address is located 336 bytes inside of [ 27.274413][ T371] 512-byte region [ffff88810fc99c00, ffff88810fc99e00) [ 27.287681][ T371] The buggy address belongs to the page: [ 27.293562][ T371] page:ffffea00043f2600 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x10fc98 [ 27.303796][ T371] head:ffffea00043f2600 order:2 compound_mapcount:0 compound_pincount:0 [ 27.312119][ T371] flags: 0x4000000000010200(slab|head|zone=1) [ 27.318199][ T371] raw: 4000000000010200 0000000000000000 dead000000000122 ffff888100042f00 [ 27.326790][ T371] raw: 0000000000000000 0000000000100010 00000001ffffffff 0000000000000000 [ 27.335368][ T371] page dumped because: kasan: bad access detected [ 27.341942][ T371] page_owner tracks the page as allocated [ 27.347656][ T371] page last allocated via order 2, migratetype Unmovable, gfp_mask 0x152a20(GFP_ATOMIC|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL), pid 331, ts 26848026857, free_ts 26288375358 [ 27.366576][ T371] post_alloc_hook+0x192/0x1b0 [ 27.371343][ T371] prep_new_page+0x1c/0x110 [ 27.375859][ T371] get_page_from_freelist+0x2c3a/0x2cd0 [ 27.381402][ T371] __alloc_pages+0x1a2/0x460 [ 27.385988][ T371] new_slab+0xa0/0x4d0 [ 27.390052][ T371] ___slab_alloc+0x3ac/0x840 [ 27.394646][ T371] __slab_alloc+0x49/0x90 [ 27.398982][ T371] __kmalloc+0x16a/0x2c0 [ 27.403226][ T371] ___neigh_create+0x6fb/0x1c50 [ 27.408078][ T371] __neigh_create+0x31/0x40 [ 27.412572][ T371] ip_neigh_gw4+0x23f/0x300 [ 27.417094][ T371] ip_finish_output2+0xc61/0xec0 [ 27.422025][ T371] __ip_finish_output+0x161/0x360 [ 27.427061][ T371] ip_finish_output+0x31/0x220 [ 27.431819][ T371] ip_output+0x1ea/0x390 [ 27.436063][ T371] ip_local_out+0x96/0xb0 [ 27.440404][ T371] page last free stack trace: [ 27.445069][ T371] free_unref_page_prepare+0x5fa/0x600 [ 27.450520][ T371] free_unref_page+0xae/0x540 [ 27.455189][ T371] __free_pages+0x6c/0x100 [ 27.459597][ T371] __free_slab+0xe5/0x1e0 [ 27.463927][ T371] __unfreeze_partials+0x15a/0x190 [ 27.469036][ T371] put_cpu_partial+0xc6/0x120 [ 27.473708][ T371] __slab_free+0x1d4/0x290 [ 27.478121][ T371] ___cache_free+0x104/0x120 [ 27.482709][ T371] qlink_free+0x4d/0x90 [ 27.486859][ T371] qlist_free_all+0x5f/0xb0 [ 27.491361][ T371] kasan_quarantine_reduce+0x14a/0x170 [ 27.497520][ T371] __kasan_slab_alloc+0x2f/0xe0 [ 27.502394][ T371] slab_post_alloc_hook+0x4f/0x2b0 [ 27.507549][ T371] kmem_cache_alloc+0xf7/0x260 [ 27.512330][ T371] getname_flags+0xba/0x510 [ 27.516835][ T371] __x64_sys_mkdirat+0x7c/0xa0 [ 27.521620][ T371] [ 27.523942][ T371] Memory state around the buggy address: [ 27.529563][ T371] ffff88810fc99c00: fa fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.537620][ T371] ffff88810fc99c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.545675][ T371] >ffff88810fc99d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.553727][ T371] ^ [ 27.560391][ T371] ffff88810fc99d80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 27.568451][ T371] ffff88810fc99e00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 27.576506][ T371] ================================================================== [ 27.584562][ T371] Disabling lock debugging due to kernel taint